Drill accurately centered holes in woods. 

• Made of high quality material, durable and high precision
• 4 flute wood bits, cut faster than cleaner, flat bits and tri-flute wood drills
• Own for better positioning and punching.
• High quenching sharp-tip, four-slot metal removal There are self-tapping thread, it helps to improve work efficiency. 
• Suitable for 1/4 hex shank power tool and wood depth operation electric screwdriver.

• Type: Four edges four slot woodworking drill bit set
• Material: High Carbon Steel
• Color: Black
• Shank diameter: 6.35mm
• Length: about 165mm
• Bit diameter: 10mm, 14mm, 16mm, 18mm, 20mm, 25mm

•  1pc. x Woodworking Drill Bits

• Only the above package content, other products are not included.